Man I got lucky and back in Mar picked up 10 pf66 filters for $3.99ea. Personally I don’t think the PPE filter is worth it especially if you change your oil every 5k, oil isn’t that expensive and If you change it on a decent interval your just paying for something not needed.

 

The Delco is just fine.

 

I am sticking with the PF66 and AcDelco 0w-0 Dexos D oil myself, one less warranty question to be brought up if I have a problem down the road

 

I use the CAT filter & conversion kit, which allows for better flow. It's done really well for me. I use Rotella T6.

 

Great story…wrong engine


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I used the PPE filter once and sent an oil sample to Blackstone. The sample came back great but I have not used it since, because it’s way over priced

 

I purchased 2 PPE filters from Rudy’s Diesel (no affiliation) they were the cheapest after shipping. I plan to do an oil analysis with the stock filter and oil at 5k (15k total miles). Then may go to mobil 1 dexos D spec. Course the dealer does free OC for 48k, just never liked anyone touching my rigs but me. May just let them do the OC with the AC Delco and use this PPE filter and see if my numbers improve vs stock filter. IDK.
Im a big fan of using Oil analysis to get your OC interval dialed in then run with it. Everyones commute or driving habits are very different.

 

I have always been an ac delco fan, but was disappointed with the duramax oil filters i recently purchased. Ordered 2 from rock auto and when taking out of box one of the filters had a rattle. I then noticed a small "ding" on the rounded edge/bottom of filter. You could wiggle the filter element with your finger.

I of course did not use that filter but cut it open with my filter cutter (used for my race car) and that ding caused the spring sheet metal piece that holds the bypass valve and keeps pressure on the element to be dislocated. In addition the filter pleats were widely spaced and the internals just had a cheap feel vs other filters I have cut apart such as Bosch (which are one of my favorites). Even the house brand orielly filters are often made by wix and are better quality. The Bosch also uses a real spring vs a bent piece of sheet metal to hold pressure on the element.

I am sure the acdelco meets oem specs and will work just fine, but I will not be purchasing anymore until their quality goes back up.

On a side note, Rock Auto refunded the damaged filter no questions asked.

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